This page explains how Kenneth M. Dukes (USATT# 43169)'s rating went from 1680 to 1683 at the Greater Columbia Feb Invitatio held on - 18 Feb 1996. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.